National Hurricane Center (NHC) Pacific Map

984
ABPZ20 KNHC 112312
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 PM PDT Thu Sep 11 2025

For the eastern and central North Pacific east of 180 longitude:

Active Systems:
The National Hurricane Center is also issuing advisories on
newly-formed Tropical Depression Thirteen-E, located just offshore
of the coast of southern Mexico.

Tropical cyclone formation is not expected in the next 7 days.

&&

Public Advisories on Tropical Depression Thirteen-E are issued
under WMO header WTPZ33 KNHC and under AWIPS header MIATCPEP3.
Forecast/Advisories on Tropical Depression Thirteen-E are issued
under WMO header WTPZ23 KNHC and under AWIPS header MIATCMEP3.

$$
Forecaster Jelsema

5-Day Uncertainty Track last updated Thu, 11 Sep 2025 20:34:37 GMT


Wind Speed Probabilities last updated Thu, 11 Sep 2025 21:22:08 GMT

5-Day Uncertainty Track last updated Thu, 11 Sep 2025 20:34:37 GMT


Wind Speed Probabilities last updated Thu, 11 Sep 2025 20:34:37 GMT

Issued at 300 PM CST Thu Sep 11 2025 000 WTPZ43 KNHC 112033 TCDEP3 Tropical Depression Thirteen-E Discussion Number 1 NWS National Hurricane Center Miami FL EP132025 300 PM CST Thu Sep 11 2025 High resolution GOES visible satellite imagery throughout today indicates that the disturbance south of Mexico has become better organized. The system has a partially exposed low-level circulation located near an area of bursting deep convection with cloud top temperatures of less than -80 degrees C. Subjective Dvorak classifications from TAFB and SAB are T2.5 and T2.0, respectively. Therefore, advisories have been initiated on Tropical Depression Thirteen-E with an initial intensity of 30 kt. The depression is moving at an uncertain 300/5 kt. A mid-level ridge to centered over northern Mexico and Texas should steer the cyclone west-northwestward with an acceleration in forward speed during the next few days. Over the weekend, the system should turn more northwestward as it rounds the periphery of the ridge and continue that motion through the end of the forecast period. There is little cross-track variance in the guidance envelope, however, a bit more of an along-track spread. The official track forecast lies between the various consensus aids and the Google DeepMind guidance. The new cyclone has a rather small circulation. In the next couple of days, global models suggest vertical wind shear and the proximity to land should limit the system's ability to strengthen. By the weekend, environment conditions should become more conducive for steady strengthening. The depression is forecast to reach tropical storm strength in a day or so and become a hurricane by day 3. Late in the forecast period, cooler sea surface temperatures and dry mid-level humidities should induce a weakening trend. The initial NHC intensity forecast lies on the higher end of the intensity guidance envelope. Predicted tropical-storm-force winds are expected to remain offshore of the coast of Mexico. However, heavy rains and potentially gusty winds are possible along portions of the southern coast of Mexico during the next day or so. FORECAST POSITIONS AND MAX WINDS INIT 11/2100Z 15.5N 98.8W 30 KT 35 MPH 12H 12/0600Z 16.1N 100.2W 30 KT 35 MPH 24H 12/1800Z 16.7N 102.4W 35 KT 40 MPH 36H 13/0600Z 17.3N 104.5W 40 KT 45 MPH 48H 13/1800Z 17.7N 106.3W 45 KT 50 MPH 60H 14/0600Z 18.2N 107.7W 55 KT 65 MPH 72H 14/1800Z 18.6N 109.1W 65 KT 75 MPH 96H 15/1800Z 20.0N 111.5W 70 KT 80 MPH 120H 16/1800Z 22.1N 113.7W 55 KT 65 MPH $$ Forecaster Bucci/Pasch

Issued at 2100 UTC THU SEP 11 2025 000 FOPZ13 KNHC 112032 PWSEP3 TROPICAL DEPRESSION THIRTEEN-E WIND SPEED PROBABILITIES NUMBER 1 NWS NATIONAL HURRICANE CENTER MIAMI FL EP132025 2100 UTC THU SEP 11 2025 AT 2100Z THE CENTER OF TROPICAL DEPRESSION THIRTEEN-E WAS LOCATED NEAR LATITUDE 15.5 NORTH...LONGITUDE 98.8 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 30 KTS...35 MPH...55 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) PACIFIC DAYLIGHT TIME (PDT)...SUBTRACT 7 HOURS FROM Z TIME HAWAIIAN STANDARD TIME (HST)...SUBTRACT 10 HOURS FROM Z TIME WIND SPEED PROBABILITY TABLE FOR SPECIFIC LOCATIONS CHANCES OF SUSTAINED (1-MINUTE AVERAGE) WIND SPEEDS OF AT LEAST ...34 KT (39 MPH... 63 KM/H)... ...50 KT (58 MPH... 93 KM/H)... ...64 KT (74 MPH...119 KM/H)... FOR LOCATIONS AND TIME PERIODS DURING THE NEXT 5 DAYS PROBABILITIES FOR LOCATIONS ARE GIVEN AS OP(CP) WHERE OP IS THE PROBABILITY OF THE EVENT BEGINNING DURING AN INDIVIDUAL TIME PERIOD (ONSET PROBABILITY) (CP) IS THE PROBABILITY OF THE EVENT OCCURRING BETWEEN 18Z THU AND THE FORECAST HOUR (CUMULATIVE PROBABILITY) PROBABILITIES ARE GIVEN IN PERCENT X INDICATES PROBABILITIES LESS THAN 1 PERCENT PROBABILITIES FOR 34 KT AND 50 KT ARE SHOWN AT A GIVEN LOCATION WHEN THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 3 PERCENT. PROBABILITIES FOR 34...50...64 KT SHOWN WHEN THE 5-DAY 64-KT CUMULATIVE PROBABILITY IS AT LEAST 1 PERCENT. - - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - - FROM FROM FROM FROM FROM FROM FROM TIME 18Z THU 06Z FRI 18Z FRI 06Z SAT 18Z SAT 18Z SUN 18Z MON PERIODS TO TO TO TO TO TO TO 06Z FRI 18Z FRI 06Z SAT 18Z SAT 18Z SUN 18Z MON 18Z TUE FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT P ABREOJOS 34 X X( X) X( X) X( X) X( X) X( X) 3( 3) CABO SAN LUCAS 34 X X( X) X( X) X( X) 3( 3) 7(10) 2(12) SAN JOSE CABO 34 X X( X) X( X) X( X) 2( 2) 7( 9) 2(11) LA PAZ 34 X X( X) X( X) X( X) 1( 1) 3( 4) 4( 8) LORETO 34 X X( X) X( X) X( X) X( X) 1( 1) 2( 3) ISLAS MARIAS 34 X X( X) X( X) 1( 1) 5( 6) 2( 8) X( 8) MAZATLAN 34 X X( X) X( X) X( X) 2( 2) 1( 3) X( 3) SAN BLAS 34 X X( X) X( X) 1( 1) 3( 4) 1( 5) X( 5) 15N 105W 34 X X( X) 1( 1) 1( 2) 2( 4) 1( 5) X( 5) MANZANILLO 34 X X( X) 3( 3) 3( 6) 3( 9) X( 9) X( 9) L CARDENAS 34 X 5( 5) 1( 6) 1( 7) 1( 8) X( 8) X( 8) ZIHUATANEJO 34 X 6( 6) X( 6) 1( 7) X( 7) X( 7) X( 7) 15N 100W 34 2 1( 3) X( 3) X( 3) X( 3) X( 3) X( 3) ACAPULCO 34 5 1( 6) X( 6) X( 6) X( 6) X( 6) X( 6) 15N 110W 34 X X( X) X( X) X( X) 4( 4) 2( 6) X( 6) 20N 110W 34 X X( X) X( X) 1( 1) 28(29) 27(56) 1(57) 20N 110W 50 X X( X) X( X) X( X) 5( 5) 13(18) 1(19) 20N 110W 64 X X( X) X( X) X( X) 1( 1) 5( 6) X( 6) ISLA SOCORRO 34 X X( X) X( X) 1( 1) 21(22) 27(49) 1(50) ISLA SOCORRO 50 X X( X) X( X) X( X) 3( 3) 15(18) 1(19) ISLA SOCORRO 64 X X( X) X( X) X( X) 1( 1) 5( 6) X( 6) ISLA CLARION 34 X X( X) X( X) X( X) 1( 1) 6( 7) 3(10) 20N 115W 34 X X( X) X( X) X( X) X( X) 8( 8) 7(15) 25N 115W 34 X X( X) X( X) X( X) X( X) 2( 2) 7( 9) $$ FORECASTER BUCCI

Issued at 300 PM CST Thu Sep 11 2025 000 WTPZ33 KNHC 112031 TCPEP3 BULLETIN Tropical Depression Thirteen-E Advisory Number 1 NWS National Hurricane Center Miami FL EP132025 300 PM CST Thu Sep 11 2025 ...TROPICAL DEPRESSION FORMS OFF THE COAST OF SOUTHERN MEXICO... SUMMARY OF 300 PM CST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...15.5N 98.8W ABOUT 120 MI...195 KM SE OF ACAPULCO MEXICO MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...WNW OR 300 DEGREES AT 6 MPH...9 KM/H MINIMUM CENTRAL PRESSURE...1009 MB...29.80 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. Interests along the coast of southwestern Mexico should monitor the progress of this system. DISCUSSION AND OUTLOOK ---------------------- At 300 PM CST (2100 UTC), the center of Tropical Depression Thirteen-E was located near latitude 15.5 North, longitude 98.8 West. The depression is moving toward the west-northwest near 6 mph (9 km/h) and this general motion with a gradual increase in forward speed is expected to continue for the next few days. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Some slow strengthening is forecast during the next couple of days, and the system is expected to become a tropical storm in a day or so. The estimated minimum central pressure is 1009 mb (29.80 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: Tropical Depression Thirteen-E will lead to rainfall totals of 2 to 4 inches, with local amounts of 6 inches, across southwest Mexico through Sunday. This brings a risk of flash flooding, especially in areas of higher terrain. WIND: Gusty winds are possible over portions of the southern coast of Mexico from Punta Maldonado through Manzanillo during the next day or so. NEXT ADVISORY ------------- Next complete advisory at 900 PM CST. $$ Forecaster Bucci/Pasch

...TROPICAL DEPRESSION FORMS OFF THE COAST OF SOUTHERN MEXICO... As of 3:00 PM CST Thu Sep 11 the center of Thirteen-E was located near 15.5, -98.8 with movement WNW at 6 mph. The minimum central pressure was 1009 mb with maximum sustained winds of about 35 mph.

Issued at 2100 UTC THU SEP 11 2025 000 WTPZ23 KNHC 112031 TCMEP3 TROPICAL DEPRESSION THIRTEEN-E FORECAST/ADVISORY NUMBER 1 NWS NATIONAL HURRICANE CENTER MIAMI FL EP132025 2100 UTC THU SEP 11 2025 TROPICAL DEPRESSION CENTER LOCATED NEAR 15.5N 98.8W AT 11/2100Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 300 DEGREES AT 5 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1009 MB MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 15.5N 98.8W AT 11/2100Z AT 11/1800Z CENTER WAS LOCATED NEAR 15.3N 98.3W FORECAST VALID 12/0600Z 16.1N 100.2W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 12/1800Z 16.7N 102.4W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 20NE 0SE 0SW 10NW. FORECAST VALID 13/0600Z 17.3N 104.5W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 30NE 10SE 0SW 20NW. FORECAST VALID 13/1800Z 17.7N 106.3W MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 40NE 20SE 10SW 30NW. FORECAST VALID 14/0600Z 18.2N 107.7W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 20NE 0SE 0SW 10NW. 34 KT... 50NE 30SE 20SW 40NW. FORECAST VALID 14/1800Z 18.6N 109.1W MAX WIND 65 KT...GUSTS 80 KT. 64 KT... 10NE 0SE 0SW 0NW. 50 KT... 30NE 20SE 10SW 20NW. 34 KT... 60NE 50SE 40SW 50NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 100 NM ON DAY 4 AND 125 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 15/1800Z 20.0N 111.5W MAX WIND 70 KT...GUSTS 85 KT. 50 KT... 40NE 20SE 20SW 30NW. 34 KT... 80NE 60SE 50SW 60NW. OUTLOOK VALID 16/1800Z 22.1N 113.7W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 30NE 0SE 0SW 20NW. 34 KT... 80NE 60SE 50SW 60NW. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 15.5N 98.8W NEXT ADVISORY AT 12/0300Z $$ FORECASTER BUCCI

304
ABPZ20 KNHC 111735
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Thu Sep 11 2025

For the eastern and central North Pacific east of 180 longitude:

South of Southern Mexico (EP95):
Showers and thunderstorms associated with an area of low pressure
just offshore of the coast of southern Mexico continue to show signs
of organization. Environmental conditions are favorable for further
development, and a tropical depression is likely to form later today
or tonight while the system moves west-northwestward, roughly
parallel to but offshore of the coast of southern and southwestern
Mexico. Interests along the southern and southwestern coasts of
Mexico should monitor the progress of this low. Additional
information on this system, including gale warnings, can be found in
High Seas Forecasts issued by the National Weather Service.
* Formation chance through 48 hours...high...90 percent.
* Formation chance through 7 days...high...90 percent.

&&
High Seas Forecasts issued by the National Weather Service
can be found under AWIPS header NFDHSFEPI, WMO header FZPN02
KWBC, and on the web at ocean.weather.gov/shtml/NFDHSFEPI.php

$$
Forecaster Bucci

000
ABPZ20 KNHC 111135
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 AM PDT Thu Sep 11 2025

For the eastern and central North Pacific east of 180 longitude:

South of Southern Mexico (EP95):
Showers and thunderstorms associated with an area of low pressure
just offshore of the coast of southern Mexico continue to show signs
of organization. Environmental conditions are favorable for further
development, and a tropical depression is likely to form later today
as the system moves west-northwestward, roughly parallel to but
offshore of the coast of southern and southwestern Mexico.
Interests along the southern and southwestern coast of Mexico should
monitor the progress of this low. Additional information on this
system, including gale warnings, can be found in High Seas Forecasts
issued by the National Weather Service.
* Formation chance through 48 hours...high...90 percent.
* Formation chance through 7 days...high...90 percent.

&&
High Seas Forecasts issued by the National Weather Service
can be found under AWIPS header NFDHSFEPI, WMO header FZPN02
KWBC, and on the web at ocean.weather.gov/shtml/NFDHSFEPI.php

$$
Forecaster Bucci

000
ABPZ20 KNHC 111131
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 AM PDT Thu Sep 11 2025

For the eastern and central North Pacific east of 180 longitude:

South of Southern Mexico (EP95):
Showers and thunderstorms associated with an area of low pressure
just offshore of the coast of southern Mexico continue to show signs
of organization. Environmental conditions are favorable for further
development, and a tropical depression is likely to form later today
as the system moves west-northwestward, roughly parallel to but
offshore of the coast of southern and southwestern Mexico.
Interests along the southern and southwestern coast of Mexico
should monitor the progress of this low. Additional information on
this system, including gale warnings, can be found in High Seas
Forecasts issued by the National Weather
Service.
* Formation chance through 48 hours...high...90 percent.
* Formation chance through 7 days...high...90 percent.

&&
High Seas Forecasts issued by the National Weather Service
can be found under AWIPS header NFDHSFEPI, WMO header FZPN02
KWBC, and on the web at ocean.weather.gov/shtml/NFDHSFEPI.php

$$
Forecaster Bucci

517
ABPZ20 KNHC 110513
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 PM PDT Wed Sep 10 2025

For the eastern and central North Pacific east of 180 longitude:

South of Southern Mexico (EP95):
Showers and thunderstorms associated with an area of low pressure
just offshore of the coast of southern Mexico are showing signs of
organization. Environmental conditions are favorable for further
development, and a tropical depression is likely to form on Thursday
as the system moves west-northwestward, roughly parallel to but
offshore of the coast of southern and southwestern Mexico.
Additional information on this system, including gale warnings, can
be found in High Seas Forecasts issued by the National Weather
Service.
* Formation chance through 48 hours...high...90 percent.
* Formation chance through 7 days...high...90 percent.

&&
High Seas Forecasts issued by the National Weather Service
can be found under AWIPS header NFDHSFEPI, WMO header FZPN02
KWBC, and on the web at ocean.weather.gov/shtml/NFDHSFEPI.php

$$
Forecaster Jelsema

964
ABPZ20 KNHC 102337
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 PM PDT Wed Sep 10 2025

For the eastern and central North Pacific east of 180 longitude:

South of Southern Mexico (EP95):
Showers and thunderstorms associated with an area of low pressure
just offshore of the coast of southern Mexico are showing signs of
organization. Environmental conditions are favorable for further
development, and a tropical depression is likely to form in the next
day or so as the system moves west-northwestward, roughly parallel
to but offshore of the coast of southern and southwestern Mexico.
* Formation chance through 48 hours...high...80 percent.
* Formation chance through 7 days...high...90 percent.

$$
Forecaster Jelsema

000
ABPZ20 KNHC 101726
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Wed Sep 10 2025

For the eastern and central North Pacific east of 180 longitude:

Active Systems:
The National Hurricane Center has issued the last advisory on
Post-Tropical Cyclone Kiko, located in the central Pacific basin
just north of Oahu in the Hawaiian Islands.

South of Southern Mexico (EP95):
Recent satellite surface wind data indicate that an area of low
pressure has formed a couple of hundred miles south of Puerto
Angel, Mexico. The associated shower and thunderstorm activity has
become better organized since yesterday, and a tropical depression
is likely to form in a day or so. The system is forecast to move
west-northwestward, roughly parallel to but offshore of the coast of
Mexico.
* Formation chance through 48 hours...high...70 percent.
* Formation chance through 7 days...high...90 percent.

$$
Forecaster Bucci/Blake

000
ABPZ20 KNHC 101130
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 AM PDT Wed Sep 10 2025

For the eastern and central North Pacific east of 180 longitude:

Active Systems:
The National Hurricane Center is issuing advisories on Tropical
Storm Kiko, located in the central Pacific basin just
north-northeast of Oahu in the Hawaiian Islands.

South of Southern and Southwestern Mexico (EP95):
A tropical wave located a couple hundred miles offshore of the coast
of southern Mexico is producing a large area of disorganized showers
and thunderstorms. Environmental conditions are favorable for
development of this system, and a tropical depression is likely to
form by late this week as it moves west-northwestward, roughly
parallel to but offshore of the Mexican coast.
* Formation chance through 48 hours...medium...50 percent.
* Formation chance through 7 days...high...90 percent.

$$
Forecaster Bucci

589
ABPZ20 KNHC 100507
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 PM PDT Tue Sep 9 2025

For the eastern and central North Pacific east of 180 longitude:

Active Systems:
The National Hurricane Center is issuing advisories on Tropical
Storm Kiko, located in the central Pacific basin just northeast of
Oahu in the Hawaiian Islands.

South of Southern and Southwestern Mexico (EP95):
A tropical wave located a couple hundred miles offshore of the coast
of southern Mexico is producing a large area of disorganized showers
and thunderstorms. Environmental conditions are favorable for
development of this system, and a tropical depression is likely to
form by late this week as it moves west-northwestward, roughly
parallel to but offshore of the Mexican coast.
* Formation chance through 48 hours...medium...50 percent.
* Formation chance through 7 days...high...90 percent.

$$
Forecaster Jelsema

Issued at 0300 UTC WED SEP 10 2025 ZCZC HFOPWSCP4 ALL TTAA00 PHFO DDHHMM TROPICAL STORM KIKO WIND SPEED PROBABILITIES NUMBER 40 NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI EP112025 ISSUED BY NWS NATIONAL HURRICANE CENTER MIAMI FL 0300 UTC WED SEP 10 2025 AT 0300Z THE CENTER OF TROPICAL STORM KIKO WAS LOCATED NEAR LATITUDE 22.9 NORTH...LONGITUDE 156.3 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 35 KTS...40 MPH...65 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) PACIFIC DAYLIGHT TIME (PDT)...SUBTRACT 7 HOURS FROM Z TIME HAWAIIAN STANDARD TIME (HST)...SUBTRACT 10 HOURS FROM Z TIME WIND SPEED PROBABILITY TABLE FOR SPECIFIC LOCATIONS CHANCES OF SUSTAINED (1-MINUTE AVERAGE) WIND SPEEDS OF AT LEAST ...34 KT (39 MPH... 63 KM/H)... ...50 KT (58 MPH... 93 KM/H)... ...64 KT (74 MPH...119 KM/H)... FOR LOCATIONS AND TIME PERIODS DURING THE NEXT 5 DAYS PROBABILITIES FOR LOCATIONS ARE GIVEN AS OP(CP) WHERE OP IS THE PROBABILITY OF THE EVENT BEGINNING DURING AN INDIVIDUAL TIME PERIOD (ONSET PROBABILITY) (CP) IS THE PROBABILITY OF THE EVENT OCCURRING BETWEEN 00Z WED AND THE FORECAST HOUR (CUMULATIVE PROBABILITY) PROBABILITIES ARE GIVEN IN PERCENT X INDICATES PROBABILITIES LESS THAN 1 PERCENT PROBABILITIES FOR 34 KT AND 50 KT ARE SHOWN AT A GIVEN LOCATION WHEN THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 3 PERCENT. PROBABILITIES FOR 34...50...64 KT SHOWN WHEN THE 5-DAY 64-KT CUMULATIVE PROBABILITY IS AT LEAST 1 PERCENT. - - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - - FROM FROM FROM FROM FROM FROM FROM TIME 00Z WED 12Z WED 00Z THU 12Z THU 00Z FRI 00Z SAT 00Z SUN PERIODS TO TO TO TO TO TO TO 12Z WED 00Z THU 12Z THU 00Z FRI 00Z SAT 00Z SUN 00Z MON FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT 25N 160W 34 1 9(10) X(10) X(10) X(10) X(10) X(10) BUOY 51101 34 X 2( 2) 8(10) X(10) X(10) X(10) X(10) 25N 165W 34 X X( X) 1( 1) 3( 4) 1( 5) X( 5) X( 5) $$ FORECASTER BEVEN NNNN

Issued at 500 PM HST Tue Sep 09 2025 ZCZC HFOTCPCP4 ALL TTAA00 PHFO DDHHMM BULLETIN Tropical Storm Kiko Advisory Number 40 NWS Central Pacific Hurricane Center Honolulu HI EP112025 Issued by NWS National Hurricane Center Miami FL 500 PM HST Tue Sep 09 2025 ... KIKO STILL A TROPICAL STORM AND IS PRODUCING LIFE-THREATENING RIP CURRENTS AND HIGH SURF ACROSS PORTIONS OF HAWAIIAN ISLANDS... SUMMARY OF 500 PM HST...0300 UTC...INFORMATION ---------------------------------------------- LOCATION...22.9N 156.3W ABOUT 150 MI...240 KM NE OF HONOLULU HAWAII MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...WNW OR 285 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...1008 MB...29.77 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. Interests in the Hawaiian Islands should monitor the progress of Kiko. DISCUSSION AND OUTLOOK ---------------------- At 500 PM HST (0300 UTC), the center of Tropical Storm Kiko was located near latitude 22.9 North, longitude 156.3 West. Kiko is moving toward the west-northwest near 14 mph (22 km/h) and this motion is expected to continue for the next few days, while passing north of the main Hawaiian Islands. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Weakening is expected, and the system is forecast to become post-tropical in a couple days. Tropical-storm-force winds extend outward up to 90 miles (150 km) to the north of the center. The estimated minimum central pressure is 1008 mb (29.77 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Kiko can be found in the Tropical Cyclone Discussion under AWIPS header HFOTCDCP4 and WMO header WTPA44 PHFO. SURF: Swells generated by Kiko are building from east to west across the exposed Hawaiian waters and are forecast to peak tonight through Wednesday, potentially producing life-threatening surf and rip currents. Refer to the latest updates and forecasts issued from the National Weather Service in Honolulu, Hawaii. NEXT ADVISORY ------------- Next complete advisory at 1100 PM HST. $$ Forecaster Beven NNNN

... KIKO STILL A TROPICAL STORM AND IS PRODUCING LIFE-THREATENING RIP CURRENTS AND HIGH SURF ACROSS PORTIONS OF HAWAIIAN ISLANDS... As of 5:00 PM HST Tue Sep 09 the center of Kiko was located near 22.9, -156.3 with movement WNW at 14 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 40 mph.

Issued at 0300 UTC WED SEP 10 2025 ZCZC HFOTCMCP4 ALL TTAA00 PHFO DDHHMM TROPICAL STORM KIKO FORECAST/ADVISORY NUMBER 40 NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI EP112025 ISSUED BY NWS NATIONAL HURRICANE CENTER MIAMI FL 0300 UTC WED SEP 10 2025 TROPICAL STORM CENTER LOCATED NEAR 22.9N 156.3W AT 10/0300Z POSITION ACCURATE WITHIN 25 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 285 DEGREES AT 12 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1008 MB MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT. 34 KT....... 80NE 0SE 0SW 60NW. 4 M SEAS....180NE 60SE 60SW 150NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 22.9N 156.3W AT 10/0300Z AT 10/0000Z CENTER WAS LOCATED NEAR 22.7N 155.7W FORECAST VALID 10/1200Z 23.4N 158.2W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 60NE 0SE 0SW 40NW. FORECAST VALID 11/0000Z 24.1N 160.5W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 11/1200Z 24.8N 162.6W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 12/0000Z 25.6N 164.6W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 12/1200Z 26.2N 166.5W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 13/0000Z 26.7N 168.3W...POST-TROP/REMNT LOW MAX WIND 20 KT...GUSTS 30 KT. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY OUTLOOK VALID 14/0000Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 22.9N 156.3W NEXT ADVISORY AT 10/0900Z $$ FORECASTER BEVEN NNNN